diff --git a/core/math/a_star.cpp b/core/math/a_star.cpp
index 4f80fb2491c..ffe10899650 100644
--- a/core/math/a_star.cpp
+++ b/core/math/a_star.cpp
@@ -443,4 +443,5 @@ AStar::AStar() {
 AStar::~AStar() {
 
 	pass = 1;
+	clear();
 }